89 lines
2.9 KiB
C++
Executable File
89 lines
2.9 KiB
C++
Executable File
// -*- mode:c++; tab-width:2; indent-tabs-mode:nil; c-basic-offset:2 -*-
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#ifndef __UPC_EAN_READER_H__
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#define __UPC_EAN_READER_H__
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/*
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* Copyright 2010 ZXing authors All rights reserved.
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*
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* Licensed under the Apache License, Version 2.0 (the "License");
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* you may not use this file except in compliance with the License.
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* You may obtain a copy of the License at
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*
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* http://www.apache.org/licenses/LICENSE-2.0
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*
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* Unless required by applicable law or agreed to in writing, software
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* distributed under the License is distributed on an "AS IS" BASIS,
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* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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* See the License for the specific language governing permissions and
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* limitations under the License.
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*/
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#include <zxing/oned/OneDReader.h>
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#include <zxing/common/BitArray.h>
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#include <zxing/Result.h>
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namespace zxing {
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namespace oned {
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class UPCEANReader : public OneDReader {
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private:
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std::string decodeRowStringBuffer;
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// UPCEANExtensionSupport extensionReader;
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// EANManufacturerOrgSupport eanManSupport;
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static const int MAX_AVG_VARIANCE;
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static const int MAX_INDIVIDUAL_VARIANCE;
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static Range findStartGuardPattern(Ref<BitArray> row);
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virtual Range decodeEnd(Ref<BitArray> row, int endStart);
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static bool checkStandardUPCEANChecksum(Ref<String> const& s);
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static Range findGuardPattern(Ref<BitArray> row,
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int rowOffset,
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bool whiteFirst,
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std::vector<int> const& pattern,
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std::vector<int>& counters);
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protected:
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static const std::vector<int> START_END_PATTERN;
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static const std::vector<int> MIDDLE_PATTERN;
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static const std::vector<int const*> L_PATTERNS;
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static const std::vector<int const*> L_AND_G_PATTERNS;
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static Range findGuardPattern(Ref<BitArray> row,
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int rowOffset,
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bool whiteFirst,
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std::vector<int> const& pattern);
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public:
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UPCEANReader();
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virtual int decodeMiddle(Ref<BitArray> row,
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Range const& startRange,
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std::string& resultString) = 0;
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virtual Ref<Result> decodeRow(int rowNumber, Ref<BitArray> row);
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virtual Ref<Result> decodeRow(int rowNumber, Ref<BitArray> row, Range const& range);
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static int decodeDigit(Ref<BitArray> row,
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std::vector<int>& counters,
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int rowOffset,
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std::vector<int const*> const& patterns);
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virtual bool checkChecksum(Ref<String> const& s);
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virtual BarcodeFormat getBarcodeFormat() = 0;
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virtual ~UPCEANReader();
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friend class MultiFormatUPCEANReader;
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};
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}
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}
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#endif
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